Peanut Butter Marshmallow Krispie Topped Brownies

Marshmallow Krispie Topped Brownies — A Hit With Everyone

Update: When I first made the Marshmallow Krispie Topped Brownie back in 2008, I had no idea how popular they’d become with my friends. For a bake sale, event or party, these are a sure thing.

——–

Okay, I wasn’t going to do it, but here it is – another recipe for today. I should have saved it for tomorrow, but I couldn’t wait to post it because these are so good! Well, at least the edges I trimmed while taking a picture. I haven’t eaten a full one yet.

Thanks to the brownie mix, these came together quickly. I think packaged mix works really well here because it’s not too rich and doesn’t upstage the peanut buttery-chocolate crispy topping. This cookie/brownie has everything going for it — the texture, flavor, easiness. Apparently, it’s an old recipe, but I just heard about it recently. I’ve seen a few variations and after making variations on the variations, came up with this. I used an 18.3 oz box of Betty Crocker brownie mix, but I think any brand/size would do.

Prepare brownies using amount of oil, eggs, water called for on box. Two minutes before they are supposed to be done, pull brownies from the oven and sprinkle marshmallows across top. Return to oven for 2 minutes to soften marshmallows. Remove from oven and spread soft marshmallows over top of brownies. Let cool completely on a wire rack.

Prepare topping. In a microwave-safe bowl, combine chocolate chips, peanut butter and butter. Heat on high for 30 seconds. Stir and repeat until chocolate is melted and mixture is smooth. Add cereal and stir to coat. Drop spoonfuls of chocolate mixture over marshmallow layer, spreading as evenly as possible. Things will look gooey at this point, so don’t even think about cutting. Put the brownies in the refrigerator for a few hours to chill.

Lift from pan and score into squares (about 16 or 20).

Half Batch Version

This recipe halves well. Just cut everything in half (half a 19.5 oz box of brownie mix is 2 cups mix) and bake in a non-stick foil lined 8 inch square metal pan. Bake time will be about 22 minutes total.

I have this recipe!! These are sooooooooo good!
I like to keep them in the fridge…I like when the chocolate sets and they way they taste. Whenever I make these the recipe is always requested. I wish my thighs didn’t like them as much as I do. Good protein with the peanut butter though…right??!!! tee hee!!
I have made them with various brownie mixes…the chocolate chunk is good with this too!!
It is good to see you in the cooking groove…that is the Anna we love!!!

Cakespy, I gave a bunch to my friend Rachel (Average Jane Crafter) but the rest are still here, waiting to be eaten. I meant to save these for tomorrow, but couldn’t help myself and had a few tastes. I love Rice Krispie Treats, but these are way more interesting.

Therese, I can’t believe it’s taken me this long to try this recipe. It’s an old one recipe but I never see it anywhere. I think I’ll make it for the next school function….or bake sale. These slice really well and aren’t the least bit gooey if you chill them long enough.

Oh, and the protein! Yes! That and the fact that Rice Krispies are fortified qualifies these as a highly nutritious snack ;).

I finally had a whole one and Wow! These are SO good. The half batch version worked out beautifully and I had just enough to share. But I’ll definitely be making a full batch of these for a bake sale or something.

These were just yummylicious! I had a box of Pillsbury brownies and they worked just fine. I was nervous because I didn’t have much success with the smore brownie you posted over New Years but this was great. The rice krispy concoction “spread” nicely over the marshmellows and I did wait a couple of hours to cut them into bars. Altogether a keeper of a recipe!! Thanks!

What happened with your S’Mores brownies? Was it the scratch part you had issues with or spreading the marshmallows? Maybe you commented and I just need to go back and check.

Glad you liked this one! You know, you could probably do the S’mores brownies with mix. Just follow the Smores crush recipe, but bake the mix as directed above (or on the box) and pour it over the crust.

Hi Anna,
With the smore brownie I found it extremely hard to cut and it didn’t look very pretty. The marshmellow was just too gooey. This krispy topped brownie cut well and tasted sooo good.
So far I have made these brownies, the macadamia nut with Bailey’s Irish creme, Wellesy chocolate chips, pistashio white chocolate jumbles and your toffee. All fabulous. Thanks for the recipes but also your insights on meaurements and equiptment and that kinda stuff.
Have a nice weekend!

I tried these at a church youth rally and now that I have the recipe I will be making them for my quilt guild meeting this week! Forget halving the recipe, I know I will have to double (or even triple!) the recipe because the family will not let me out of the house without leaving some for them too! They are so good, two favorites, chocolate and peanut butter!
Thanks

Kelsey, I’m glad you had a chance to try them. I think this is one of my favorite bar cookies in the world. If I didn’t feel the need to try something new all the time, I would make these over and over again.

THANK YOU!!!!!!!!!!! My mother’s best friend (she was like a Mom to me after my mother passed when I was 11) used to make these everytime we went to her house because I loved them so much. My mother is gone and her friend now has Alzheimer’s. I have wanted to make these for so long.

One of my favorite recipes is a variation of these!Rather than using marshmallows, you use chopped Reese’s pb cups and also peanuts if you want a little more crunch. We call them “Better Than Crack Brownies.” Soooo delicious!

Becky, thanks for the review! This is one of my all-time favorite recipes (at least right now), so I’m always happy to hear from people who like it as much as I do. My favorite thing about this one is all the different textures.

The movers came yesterday and took nearly all our kitchen stuff, but I need to make a dessert for my roommates’ last dinner tonight…this looks doable! Not having even a whisk, never mind a mixer, has put most of my bookmarked recipes out of reach…

These came out great, my brownie layer was a little thinner than I would have liked (my box of mix was 17.5 ounces or something and designed for an 8×8 pan) but the combination of the textures was great. I topped them with a sprinkle of the mini PB cups from Trader Joes 🙂 Thanks for the guidance on storing them!

If you are a real chocoholic, make this recipe by substituting Cocoa Crispies!!!! Also, can use 7 oz. jar of marshmallow cream, taking lid off and heating in microwave for 1 min. or so and spreading over top of COOLED brownies then put choc. peanut butter, Cocoa Crispie mixture on top!~!! VERY GOOD!!!!!

I am making these now, it sounds like a winner, and with 3 teenage boys in the house I am sure they will let me know how they are. Thanks for the post, us moms need to stick together and I am always looking for ways to feed my boys.. I am using Special K bars instead of Rice crispys because that’s what I have, I am sure they will be just as good and hey, special K is a diet food, is it not>?? LOL